[POWERPC] spufs: fix building spufs/spu_save_dump.h

Currently it fails with gcc from sdk 2.1 because of a spec change [1].
Maybe we should start using the definitions from spu_mfcio.h.

[1] http://gcc.gnu.org/ml/gcc-patches/2006-11/msg01598.htmlSigned-off-by: Sebastian Siewior <bigeasy@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/platforms/cell/spufs/spu_save.c

@@ -44,7 +44,7 @@ static inline void save_event_mask(void)
 	 *    Read the SPU_RdEventMsk channel and save to the LSCSA.
 	 */
 	offset = LSCSA_QW_OFFSET(event_mask);
-	regs_spill[offset].slot[0] = spu_readch(SPU_RdEventStatMask);
+	regs_spill[offset].slot[0] = spu_readch(SPU_RdEventMask);
 }
 
 static inline void save_tag_mask(void)